package Demo1;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: zhongyisheng
 * Date: 2024-07-04
 * Time: 20:50
 */
public class ComPuter {
    public void open() {
        System.out.println(" 开机");
    }
    public void close() {
        System.out.println(" 关机");
    }
    public void useUsbDevice(USB usb) {
        usb.openDevice();
        if (usb instanceof Mouse){
            Mouse mouse = (Mouse) usb;
            mouse.click();
        }else{
            KeyBoard keyBoard = (KeyBoard) usb;
            keyBoard.input();
        }
        usb.closeDevice();
    }
}
